If you extend a normal potion of regeneration, it should be 2:00, instead it is 1:30, I thought this was changed, however when I changed them into splash potions they were also 1:30 wich is incorrect because the splash are always 25% shorter.
MC-117320
Regeneration Extended is not 2:00, 1:30 instead
Resolved
Works As Intended
0
Confirmed
brewing, duration, regeneration
Minecraft 17w18b, Minecraft 1.12 Pre-Release 2
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It looks like this is not the case (anymore?) in the latest versions.